Door operating mechanism



3 Shegta-Shee't 1 jnc/cvzar- LJbJqaQhJMMi ZZZ y MW W W G G 0 0 Q G u @Q/QQ w M w N N. m 1 N Sept. 6, 1932. J.. J. MARIOTTI DOOR OPERATING MECHANISM Filed March 12. 1936 Sept. 6, 1932. J. J. MARIOTTI DOOR OPERATING MECHANISM Filed March 12. 1930 3 SheetsQSiheet 1&

Patented Sept. 6, 1932 UNITED STATES PATENT OFFICE.

JOSEPH J. MAR-IOTTI, OF CHICAGO, ILLINOIS, ASSIGNOR TO DAPRATO STATUARY COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS DOOR OPERATING MECHANISM Application filed March 12, 1930. Serial No. 435,075.

This application relates to improvements to the plane of the doors, or when an over-.

lapping weather strip is applied on one of the doors, necessarily one door must be opened in advance of the other and closed later than the other to prevent amming of the doors.

For example, in the construction herein shown the two halves of the double gate meet on a curved surface which is generally oblique to the faces of the gates. It is an object of this invention to provide an operating mechanism for causing the two such halves of the gate or door to be rotated when one of them alone 1s grasped and swung while assuring that the gates will swing in the proper sequence when r openin or closing to prevent ammlng.

Another object of this invention is to provide a closing and opening mechanism for closure members such-as gates, doors, hinged windows, and the like, which enables an operator to retain positive control'of both halves of the closure member during the opening and closing thereof.

Other objects, advantages and capabilities of the invention which are inherently possessed by it will become apparent upon perusal of this specification and the attached drawings. r Y

The embodiment disclosed in the drawings comprises a pair of hinged gates, but it should be understood that this construction and mechanism may be applied equally as well to doors of various kinds, to windows and other closure members, and that instead of having the particular joint shown at the middle of these gates some other angle of j cinder could be employed or a weather strip clea-t could obviously be placed on either door to sealthe junctionof the two doors.

Inthe drawings, Fig. lis atop plan view of a pair of] gates in closed positiom and hand gate.

showing in dotted line the. position of the gates when wide open.

F1g. 2 IS a front elevation-of the same gates.

Fig. 3 is a plan section looking downwardly into the box which contains the operating pears when the gates are closed.

Flg. 4 is a similar view of the'samemechanism as it appears when onegate has been partially opened and the other: gate is about to commence its opening movement. I

Fig. 5 is a partial elevation of thegate and a vertical sectional view of the gate operating mechanism. I p I Fig. 6 is an enlarged sectional View of the bearing and gear construction for the left Fig. 7 is an enlarged detailed view of an interlocking projection and notch shown in Figs. 3 and 4.

Fig. 8 is an enlarged} detailed view of a combined guide and bearing for the two reach rods. Y o Fig. 9 is an enlarged view of the assembly of the spur gear and; rack.

In the drawings the left gate 1 is shown provided with a top hingepintleQ'which is guided in the arm 3, the latter being anchored inthe postt to a vertical pin 5., This manner of mounting the top hinge pintle is preferred in ornamental stone construction whe're a heavy gate such as a marble or bronze gate must be carried onan ornamental stone post. The bottom hinge pintle for gate. lis indicated the numeral 6 and is connected with the gate by means of a bracket 7 bolted v 3'5 mechanism, showing the mechanism as it apthereto. This hinge pintle 6 extends through the brackets 7 through a lateral thrust hear:- ing generally indicated as 8. -Dust is prevented from entering the thrust hearing by means of a collar 9, which fits snugly thereabout.

The thrust bearing8 is carried in a block .11, the latter being bolted by means of the bolt 12 or any othersuitable means, to the inside the surfaceover which the gates move, In

some installations this box would beburied in concrete. The hinge pintle 6 enten ding movement of thereachrods.

through the block 11 has mounted on it a spur gear 14 which is keyed thereto by a key 15. Just below the spur gear there is provided a split washer 16 and inthe aperture provided in this washer a smaller key 17 is seated and is secured to the spur gear by means of the screw 18. A large partof the weight of this gate is carried through the hinge pintle 6 and split washer 16 upon abottom vertical thrust bearing 19 and is guided in, its rot-ative movement by a second lateral thrust bearing 21. The latter two bearings are carried in a block 22 which is secured to the bottom of the box 13 in any suitable manner; for example,

- as bythe screws 23. r

The spur gear 14 is in constant mesh with a rack 24, the latter being secured by means of bolts 25 and'26 to a reach rod 27 which extends longitudinally of the housing or" box 13.

Thereach rod 27 extends through a c0mbined guide and bearing shown in Fig. 8 and there indicated with a numeral 28. This bearing is clamped to the reach rod 27 by means of a plate 29 and screws 31 and 32. A second reach rod 33 connected with the other gate has a slightly smaller dimension where it passes through this bearing, as shown in Fig. 8, and hence may slide relatively to the reach rod 27and to the bearing 28 and clamping plate 29. Y

, The right hand gate 34 is provided with the same type of mounting for its top hinge .pintle as is'the left hand gate, hence'the description will not be duplicated. The right hand gate'is provided with a bottom hinge pintle35'n1ountedin a similar bearing as that which has just been described and which is clearly shown in Fig. 6. However, the spur gear 36 provided on the right hand gate is of a smaller diameter than that provided on the left hand gate for the purpose of causing the right hand gate to rotate at a higher rate of speed than does the other gate. A rack 37 meshes with the spur gear 36 and is rigidly connected in any suitable manner to the reach rod 33. A combined bearing and guide generally indicated as 38 constructed like the guide 28 is provided to guide the 38'may be clamped to either rod as may be desired and allow the other .rod to slide freely through.

.Inview of the manner of joining the two 7 gates, as shoWn in Fig. 3, the left hand gate must be opened first. This will be done manually by pulling .or pushing the gate and as theleft gate moves into the dotted line position shown in Fig.4 its spur gear 14. will cause the rack 24 to slideto the left. The

projection 41 on the reach rod-27 will slide to the le'ftin the notch 42, with which the freach frod '33 is provided, until'the projection strikes the left" end of the" notch 42 'whereupon furtheropening of the left gate The bearing 7 will cause the reach rod 33 to be pulled toward the left and to cause the rack 37 to swing the gate 34 open. Fig. 4 shows the position of the parts just at the instant the projection .41 has struck the left end of the fit in front of a shoulder 47 which is provided at the end of a plate 48 secured on the surface of the reach 'rod' 33. With the parts in position shown lnFig. 4'this locking bar is unable to swing into locking position because the outerend '49 of the locking bar is still riding on a cam 51, the latter being mounted immovably in the housing or box 13.

Further opening of the left hand gate beyond the dotted line position shown in Fig.

"4 will cause the right hand gate to swing open,"the latter moving ata higher rate of speed because of the use of its smaller spur gear. The spur gears are so designed that by the time the'left hand gate is in full open position the right hand gate will have caught up with it'and be likewise in full open position. I

"During the longitudinal sliding of the two reach rods they are allowed to bear Vertically downwardly against rollers 39 which are mounted in the housing. I

Whenever it is desired to close the gates either'gate may be grasped manually and swungtoward closed position. The locking bar 43 will positively assure that the rotation of either gate will cause the other gate to llkewise rotate. Durmg the closing movement-the right hand gate will naturally move more rapidly and will be almost in closed position, just prior to the time that the locking bar 43 whichis now moving toward the right, as viewed in Fig. 4, strikes the cam 51 and is thus kicked out of locking position. If the operator is at that time push ing the right hand gate he can thus push it must now be closed by the operator graspmg 1t alone and pushing itto closed position. As he does so, the locking bar 43 rides further up onto the cam sland assumes the positionshown in Fig. At the same time the projection 41 then moves totheright end of the slot 42. V V 1 To prevent undesirable friction between 11 e compression spring 45 ans the locking bar 43 as the latter moves, the bracket'45, which carries the compression'spring, is se cured by screws or anyother suitablemeans tothereach rod 27 so that it may move there- -to full closed position moving the left hand gate nto thedotted line position shown in ,Fig. 4. From this point the left hand gate lit with just as the locking bar itself moves with the reach rod 27 to which it is pivoted. Figs. 3 and 4: show that the spring has been moved toward the left during the initial movement of the reach red.

It may now be understood that both gates may be opened by initially pulling the left gate into tne position shown in Fig. i and thereafter pulling either gate open to thus accomplish the opening of both gates and that bot-h gates may be returned to the position shown in Fig. 4 by pushing or pulling on either of them. The gates are thus opened and closed in the proper sequence to prevent jamming and a very tight fit of the abutting surfaces of the two gates may be thus employed without interfering with the gate operation. This feature is of great importance when employed in doors and windows, and contributes to the appearance of a gate construction such as is here illustrated.

It should be understood that the embodiment of the invention herewith shown has been selected for the purpose of illustrating the invention in one of its practical forms, and that various modifications of the invention may be devised, which will employ its principles and remain within the scope of the invention.

Having shown and described the invention, I claim 1. In an operating mechanism for a pair of pivoted closure members, means connected with both members when the latter are open for causing the closing rotation of one member to rotate the other to closed position before the first member reaches closed position together with means for operatively disconnecting the first said means after the second member reaches closed position. i

2. In an operating mechanism for a pair of pivoted closure members, means including bars connected with both members and with each other when the members are open for causing the closing rotation of one member to rotate the other to closed position before the first member reaches closed position, together with means for operatively disconnecting said bars from each other after the second member reaches closed position.

3. In an operating mechanism for a pair of pivoted closure members, means connected with both members when the latter are open for causing the closing rotation of. either member to rotate the other toward closed position, means operatively connected with the first means for causing'the members to ro-.

tate at unequal speeds, and means for operatively disconnecting said members automatically before both reach closed position.

4. In an operating mechanism for a pair of pivoted closure members, means connected with both members when the latter are open for causing the closing rotation of either member to rotate the other toward closed position including means for causing the members to rotate at unequal speeds together with means for operatively disconnecting said members automatically before both reach closed position.

5. In an operating mechanism for a pair of pivoted closure members, a spur gear connected with each member and a rack and rack bar operatively associated with each gear and member, mid bars being slidable relatively m to each other while one member is closed and the other member is within a predetermined angle fromclosed position, and means for automatically connecting said bars in nonslidable relation whenever the second member opens beyond said angle.

6. In an operating mechanism for a pair of pivoted closure members, a gear on each member and a rack and rack bar operativel-y associated with each gear, said gears being of unequal diameter, and-means for automatically connecting said bars together to effect simultaneous rotation of both members during opening movement of both members and beyond a predetermined angular position of' go i one of them.

7 In combination with a pair of closure members, meshed gears and racks provided for each of the pair respectively, rackbars connected respectively with mid racks and eli slidable relative to each other when both members are closed, and means for automatically locking the bar-s in non-slidable relative arrangement when one member has been opened to a predetermined angular position" while the other is still closed.

8. In combination'with a pair of closure members, a meshed gear and rack provided for each of said members, rack bars connected with said racks and connected to each other in non-slidable relation when said members are open for causing either member to rotate when l the other rotates, and means operated by the closing of said member for effecting a relatively slidable arrangement of the bars to enable one member to thereafter be rotated without rotating the other. r

9. In combination with a pair of closure members, a gear connected with each member in mesh with a slidable rack for each member, rack bars connected with each'rack respectively and disposed slidably relative to each other when both members are closed, a notch provided in one rack bar and a projection on the other rack bar slidably disposed in the notch and meanscooperating with said notch and projection when one closure member is open beyond a predetermined angular position for locking the two rack bars in nonslidable relative arrangement.

10. In combination with a pair of closure members, a gear'connected with each member and in mesh with a separate slidable rack, means including a locking bar for automatically locking the two racks in non-slidable ion w my

relative arrangement when one closuremem- "ber has been opened beyond a predetermined V angular position for causing simultaneous rotation of both members upon further openl ing movement of the first said member, said means being constructed to actuate said'locking bar during the closing of said members j to unlock the rack bars.

. 11. In an operating mechanism for a pair of pivoted closure members, means including bars operatively connected with both members and with each other when both memhere are fully opened and constructed for causing rotation of one member to rotate the other to ciosed position before the first reaches closed position, said bars being operatively disconnected When both members are closed.

In Witness of the foregoing I affix my signature.

JOSEPH J. MARIOTTI. 

